Brake actuator assembly including twin cam members

Details Brake actuator assembly including twin cam members Brake actuator assembly including twin cam members

F - Mech Eng,Light,Heat,Weapons

16

D

F16D 51/50 (2006.01) F16D 65/14 (2006.01) F16D 65/22 (2006.01) F16D 65/56 (2006.01)

Patent

CA 2115374

17 A brake actuator assembly is disclosed for expanding internal shoe brakes in which a pair of brake shoes (17) are disposed with a brake drum (11). A pair of cam members (33, 35) are fixed to a pair of cam shafts (41,43) and are operable to engage the brake shoes by means of cam follows (37,39), in response to a brake input (56.55). The cam shafts (41,43) are timed relative to each other by a pair of gears (73,75). The disclosed actuator assembly ensures that the cam members rotate through the same angular magnitude, but the amount of torque transmitted to each cam is determined by the braking force required for the respective brake shoe. The disclosed actuator assembly provides for substantially greater lift, for longer shoe wear life, without taking up as much space in the radial direction as would an equivalent S-cam arrangement.

Ensemble d'actionneur de frein servant à élargir des freins à mâchoires internes constitués de deux mâchoires de freins (17) réunies à un tambour de frein (11). Deux cames (33, 35), fixées à deux arbres à came (41, 43), peuvent s'engager avec les mâchoires de frein par l'intermédiaire de pièces entraînées par les cames (37, 39) en réponse à un freinage (56.55). Les arbres à came (41, 43) sont synchronisés entre eux par deux engrenages (73, 75). L'ensemble d'actionneur présenté fait en sorte que les cames pivotent de la même distance angulaire, mais le moment transmis à chaque came dépend de la force de freinage qu'exige chacune des mâchoires. Par rapport à l'assemblage équivalent d'une came en S, cet actionneur, de plus petit rayon, fournit une force de levage sensiblement plus importante, pour une durée de vie supérieure de la mâchoire.

Affiliated with

Also associated with

Rating

Brake actuator assembly including twin cam members does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Brake actuator assembly including twin cam members, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Brake actuator assembly including twin cam members will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1849022